fix：修复 44.100表格数据显示不正确的问题

nezha-fronted/src/components/charts/chart-list-group.vue

@@ -757,7 +757,7 @@ export default {
                       // 循环处理每个elements下获取的数据列
                       if (chartItem.type === 'singleStat') {
                         if (response.data.result.length === 1) {
-                          const statistics = chartItem.param.statistics
+                          const statistics = chartItem.param.statistics || 'null'
                           if (response.data.result[0].values) {
                             singleStatRlt = bus.getSingleStatRlt(statistics, response.data.result[0].values)
                           }

nezha-fronted/src/components/charts/chart-list.vue

@@ -946,7 +946,7 @@ export default {
                       // 循环处理每个elements下获取的数据列
                       if (chartItem.type === 'singleStat') {
                         if (response.data.result.length === 1) {
-                          const statistics = chartItem.param.statistics
+                          const statistics = chartItem.param.statistics || 'null'
                           if (response.data.result[0].values) {
                             singleStatRlt = bus.getSingleStatRlt(statistics, response.data.result[0].values)
                           }

nezha-fronted/src/components/charts/chart-table.vue

@@ -367,7 +367,7 @@ export default {
       }
       this.data = chartItem
       this.unit = chartDataFormat.getUnit(this.data.unit)
-      const statistics = chartItem.param.statistics
+      const statistics = chartItem.param.statistics || 'null'
       seriesItem = this.getStatisticsResult(statistics, seriesItem)
       seriesItem && (seriesItem = seriesItem.map(item => {
         if (chartItem.param && chartItem.param.valueMapping && chartItem.param.valueMapping.type) {
@@ -584,6 +584,17 @@ export default {
 
           break
         }
+        default : {
+          copy.sort((x, y) => { return parseFloat(y.data[0]) - parseFloat(x.data[0]) })
+          result = copy.map(item => {
+            return {
+              element: item.element,
+              time: bus.timeFormate(new Date(item.data[0]), 'yyyy-MM-dd hh:mm:ss'),
+              value: item.data[1]
+            }
+          })
+          break
+        }
       }
       return result
     },

nezha-fronted/src/components/charts/chartPreview.vue

@@ -470,7 +470,7 @@ export default {
                   if (response.data.result) {
                     if (chartItem.type === 'singleStat') {
                       if (response.data.result.length === 1) {
-                        const statistics = chartItem.param.statistics
+                        const statistics = chartItem.param.statistics || 'null'
                         if (response.data.result[0].values) {
                           singleStatRlt = bus.getSingleStatRlt(statistics, response.data.result[0].values)
                           this.noData = false